Abstract: An electronic control device of a vehicle including an engine, a motor rotationally driven by the engine, and an air conditioner includes: (a) limiting a power consumption of a motor compressor that drives the air conditioner to be less than a predetermined amount when a state-of-charge value SOC of a main battery that is charged by electric power generated by the motor is less than a determination value SOC in a case where the engine is running in an engine using the engine as a power source and the vehicle is in a predetermined high-altitude environment; (b) the operation of the air conditioner is stopped when the state-of-charge value SOC is less than a determination value SOC that is lower than a determination value.

Abstract: An electric tool includes a tightening unit, a sensor unit that measures at least a tightening torque provided by the tightening unit to obtain working data relating to a result of measurement, a communications unit that transmits the working data, and a storage unit that stores the working data. The electric tool has, as a communications mode for transmitting the working data stored in the storage unit from the communications unit, a first communications mode and a second communications mode. The communications unit is configured to, in the first communications mode, transmit, during an interval between the tightening tasks, first working data which is part of the working data stored in the storage unit, and in the second communications mode, after completion of all of the tightening tasks, transmit at least second working data which is the working data stored in the storage unit except the first working data.

Abstract: A power tool charging device includes a charging unit that charges a rechargeable battery of a power tool, a condition detection unit that detects condition information of the rechargeable battery, and an information processing unit that receives the condition information of the rechargeable battery from the condition detection unit and outputs the received condition information of the rechargeable battery to a communication unit capable of performing near field communication with another device.

Abstract: An electric power tool that receives driving power from a rechargeable battery includes loads and a control circuit that controls supply of the driving power from the rechargeable battery to the loads. The control circuit sets and stores for each of the loads a reference voltage value of the rechargeable battery used for stopping or issuing a notification in order to obviate over-discharging of the rechargeable battery.

Abstract: A power tool includes a motor, a trigger, a pressure sensing unit, and a control circuit. The motor is configured to receive electric power from a battery to rotate a socket. The trigger is movably held by a tool body. The pressure sensing unit includes a pressure receiving unit for receiving pressure according to a pull-in amount of the trigger and is configured to measure a magnitude of the pressure received with the pressure receiving unit. The control circuit is configured to control a rotational speed of the motor based on measured pressure measured by the pressure sensing unit. The control circuit is configured to perform hysteresis control of the rotational speed of the motor such that the rotational speed of the motor with respect to the measured pressure differs between a case where the measured pressure increases with time and a case where the measured pressure decreases with time.

Abstract: A battery pack for an electric power tool is adapted for attachment in a removable manner to a tool body of the electric power tool. The battery pack includes an outer shell and a rechargeable battery unit accommodated in the outer shell. The rechargeable battery unit includes at least one rechargeable battery cell, a battery case that is sealed accommodating the at least one rechargeable battery cell, and a relief valve arranged on the battery case. The relief valve is configured to open when the at least one rechargeable battery cell generates gas and builds up pressure in the battery case to a predetermined value or greater.

Abstract: A power tool system includes a battery pack, a charger connectable to the battery pack, and a power tool body connectable to the battery pack. The battery pack includes a battery pack memory that stores identification information in a smallest unit allowing for communication with the charger and the power tool body. Each of the charger and the power tool body includes a device memory that stores at least one piece of identification information of a usable battery pack. Each of the charger and the power tool body or the battery pack includes a determination unit that determines whether or not the at least one piece of identification information stored in the device memory includes the identification information stored in the battery pack memory.

Abstract: A power tool system includes a battery pack, a charger connectable to the battery pack, and a power tool body connectable to the battery pack. The battery pack includes a battery pack memory that stores identification information in a smallest unit allowing for communication with the charger and the power tool body. Each of the charger and the power tool body includes a device memory that stores at least one piece of identification information of a usable battery pack. Each of the charger and the power tool body or the battery pack includes a determination unit that determines whether or not the at least one piece of identification information stored in the device memory includes the identification information stored in the battery pack memory.

Abstract: An electric power tool includes a drive source, a rechargeable battery that supplies power to the drive source, a voltage meter that measures voltage of the rechargeable battery, a temperature meter that measures temperature of the rechargeable battery, and a drive control unit that regulates the power supplied to the drive source from the rechargeable battery to drive the drive source. If the battery temperature measured by the temperature meter is lower than or equal to a predetermined temperature when the battery voltage measured by the voltage meter is lower than or equal to a predetermined voltage, the drive control unit drives the drive source differently from normal driving that is performed if the battery temperature is higher than the predetermined temperature when the battery voltage is higher than the predetermined voltage.

Abstract: A cutting tool includes a drive source, and a cutting blade driven by the drive source. A cutting line detector detects a cutting line marked on a surface of a cut subject. A deviation determination unit determines whether or not deviation of a location of the cutting blade from a location of the cutting line detected by the cutting line detector is greater than a threshold value. A notification unit notifies a user when the deviation determination unit determines that the deviation is greater than the threshold value.

Abstract: A power tool includes a motor that is driven by power supplied from a battery pack, a trigger switch that is operable by a user, and a controller that controls the motor in accordance with an operation amount of the trigger switch, wherein the controller includes a load determination unit that uses a terminal voltage of the battery pack when the motor is stopped as a reference voltage to determine load applied to the motor based on a relationship of a voltage drop amount from the reference voltage when the motor is driven, the operation amount of the trigger switch, and an operation time of the trigger switch.

Abstract: A power tool system includes a plurality of tool devices. Each of the tool devices includes a condition detection unit that detects condition information of the tool device and a communication unit capable of performing bidirectional wireless communication with a further one of the tool devices. The communication unit is configured to obtain the condition information of the tool device from the condition detection unit and transmit the obtained condition information of the tool device to the further one of the tool devices.

Abstract: A battery pack for an electric power tool is adapted for attachment in a removable manner to a tool body of the electric power tool. The battery pack includes an outer shell and a rechargeable battery unit accommodated in the outer shell. The rechargeable battery unit includes at least one rechargeable battery cell, a battery case that is sealed accommodating the at least one rechargeable battery cell, and a relief valve arranged on the battery case. The relief valve is configured to open when the at least one rechargeable battery cell generates gas and builds up pressure in the battery case to a predetermined value or greater.

Abstract: An electric power tool includes a drive source, a rechargeable battery that supplies power to the drive source, a voltage meter that measures voltage of the rechargeable battery, a temperature meter that measures temperature of the rechargeable battery, and a drive control unit that regulates the power supplied to the drive source from the rechargeable battery to drive the drive source. If the battery temperature measured by the temperature meter is lower than or equal to a predetermined temperature when the battery voltage measured by the voltage meter is lower than or equal to a predetermined voltage, the drive control unit drives the drive source differently from normal driving that is performed if the battery temperature is higher than the predetermined temperature when the battery voltage is higher than the predetermined voltage.

Abstract: A power tool system includes a plurality of tool devices. Each of the tool devices includes a condition detection unit that detects condition information of the tool device and a communication unit capable of performing bidirectional wireless communication with a further one of the tool devices. The communication unit is configured to obtain the condition information of the tool device from the condition detection unit and transmit the obtained condition information of the tool device to the further one of the tool devices.

Abstract: A power tool charging device includes a charging unit that charges a rechargeable battery of a power tool, a condition detection unit that detects condition information of the rechargeable battery, and an information processing unit that receives the condition information of the rechargeable battery from the condition detection unit and outputs the received condition information of the rechargeable battery to a communication unit capable of performing near field communication with another device.

Abstract: An electric power tool that receives driving power from a rechargeable battery includes loads and a control circuit that controls supply of the driving power from the rechargeable battery to the loads. The control circuit sets and stores for each of the loads a reference voltage value of the rechargeable battery used for stopping or issuing a notification in order to obviate over-discharging of the rechargeable battery.

Abstract: A discharge system includes: a secondary battery pack; a discharge device; and an application software running on a personal computer connected to the discharge device. The application software receives total battery voltage information, temperature information, and over-discharge information of the secondary battery pack through the discharge device, determines deterioration of the secondary battery pack based on the informations, and displays results of the determination. Further, the application software instructs the discharge device to terminate the discharge when the temperature in the pack exceeds a predetermined value and/or an over-discharge is detected.

Abstract: An electric power tool includes a rechargeable battery, a motor, a detector that detects a parameter that affects a voltage drop of the rechargeable battery and outputs a detection signal corresponding to the detected parameter, a controller that receives the detection signal and generates a control signal in accordance with the detection signal, and a power switching unit operated in accordance with the control signal from the controller to switch between a situation in which the rechargeable battery supplies electric power to the motor and a situation in which the rechargeable battery stops supplying electric power to the motor. The controller controls the power switching unit using a pulse width modulation (PWM) control signal when the electric power tool is activated. The controller changes a duty ratio of the PWM control signal in accordance with the detection signal of the detector.

Abstract: A charger for an electric power tool includes a charging unit for charging a secondary battery detachably attached to the charger; a notification unit for notifying an operation state of the charging unit by using a combination of a turn-on and turn-off of the notification unit; a brightness reducing unit for reducing a light brightness of the notification unit; and a controller for controlling the notification unit and the brightness reducing unit. If an operation state of the charging unit satisfies a specific condition, the controller controls the brightness reducing unit to reduce the light brightness of the notification unit.